Marcia Bjornerud
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The First Good Glimpse of the Earth’s Mantle
The deepest extract from the middle layer of the Earth offers a wonderland of insights.
Do Our Oceans Feel the Tug of Mars?
Ancient currents seemed to move in concert with a 2.4 million-year dance between the Red Planet and Earth.
Let’s Get Granular
Scientists have long puzzled over the behavior of mixed particles in rivers and landslides. New clues could be groundbreaking.
How Earth Once Cooled Off
A geological discovery shows how carbon was captured to chill the planet.
A New Way to Trigger a Tsunami
How historic records and new data uncovered the colossal underwater avalanche that unleashed a massive wave in 1650.
Earth’s Core Has a Gas Leak
Contrary to conventional wisdom, matter can escape the center of the Earth.
Pangea’s Second Coming Won’t Be Chill
Today’s mammals would not survive the heat of Earth’s next supercontinent. But in evolution, there’s hope.
